Conformational Analysis of Nonplanar Archipelago Structures on a Cu (111) Surface by Molecular Imaging

Pengcheng Chen, Yogesh V. Joshi, Jordan N. Metz, Nan Yao, Yunlong Zhang

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

We investigated some specially designed model compounds as proxies for archipelago structures in asphaltenes and heavy oils using noncontact atomic force microscopy (nc-AFM). Various adsorption conformations of three different kinds of linkers including aryl-aryl, aryl-CH2-aryl, and aryl-(CH2)3-aryl were identified. By focusing on the nature of linkages or bridges between aromatic cores, this work directly addresses the long-standing question on petroleum molecular structures by validating detailed features in images and overcoming challenges of nonplanar structures and conformations, providing a foundation to apply nc-AFM to unknown structures in petroleum.

Original languageEnglish (US)
Pages (from-to)12135-12141
Number of pages7
JournalEnergy and Fuels
Volume34
Issue number10
DOIs
StatePublished - Oct 15 2020

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

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